Improvement in horizontal screw-propellers



A w.s.MYERs. l, VIio'rf.1zo1w..^. 1. SCREW PRQPELLER.

Y No. 184,102.1 Pazenra Nav. '-1, 187er.

INVEIITII s ITTDBIIEYS.

THE GRAPHIC CUJLY UNITED STATES 'PATENT OFFICE.l

IMPROVEMENT IN HORIZONTAL SCREW-PROPELLER'S.

Specication forming part of Letters Patent N o. 184,102, dated November7, 1876; application led August 28, 1876.

To all whom it may concern:

Be it known that I, WILLIAM S. MYERS, of Southington, in the county ofHartford and State otl Connecticut, have invented a new and ImprovedPropeller, of which the following is a specification:

In the accompanying drawing, Figure 1 representsa top view, and Fig. 2 avertical longitudinal section on line c c, Fig. 1, of my.

' an inclosing-casing, B, the screw being app lied to a vertical shaftrevolved by suitable power. The screw is arranged. below the water-line.In the case of a, canal-boat, or other small boat, a screw would belocated on both the larboard and starboard sides, but in larger vesselsone large screw may be located amidships.

An additional channel orume, C, in front `thereby the propulsion of thevessel.

of casing B, ascends gradually from the bottom of the hull to the upperpart of the casing, and conducts the water to the screw, While an exitchannel or Hume, D, back ofthe casing, forces the water from the lowerpart oi' the easing, after it has been worked upon by the screw to theoutside, and produces The agitation of the water by the screw, beingconfined into the casing and flumes, will not produce any washing otbanks when used in canals, being also adapted for vessels of war, whichrequire protection for the screw, and to vessels plying in shallowrivers 'and waters. I am aware turbine-wheels or equivalent propellershave been arranged with one side projecting into a channel or passageleading out at the stern of a vessel, but I do not claim suchconstruction and arrangement.

Having thus described my invention, I claim as new and desire to secureby Letters Patent- The combination of the upwardly-inclined passage C,the horizontal screw arranged below the inner or discharge end ofthesame, and the outlet D communicating with the lower portion of thecasing B, as shown and described, for the purpose specified.

. WILLIAM S. MYERS.

Witnesses:

WALTER HoLooMB, M. H. HoLGoMB.

